PIC24FJ64GB004-I/ML Microchip Technology, PIC24FJ64GB004-I/ML Datasheet - Page 243

• Manufacturer Part Number: PIC24FJ64GB004-I/ML
• Description: IC, 16BIT MCU, PIC24F, 32MHZ, QFN-44
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 24Fr

Specifications of PIC24FJ64GB004-I/ML

• Controller Family/series: PIC24
• Ram Memory Size: 8KB
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Interface: I2C, LIN, SPI, UART, USB
• No. Of Pwm Channels: 5
• Core Size: 16 Bit
• Program Memory Size: 64 KB
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, IrDA, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFN
• Embedded Interface Type: I2C, LIN, SPI, UART, USB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARD
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

REGISTER 20-3:
© 2009 Microchip Technology Inc.
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15
bit 14
bit 13-10
bit 9-8
bit 7-0
ALRMEN
ARPT7
R/W-0
R/W-0
ALRMEN: Alarm Enable bit
1 = Alarm is enabled (cleared automatically after an alarm event whenever ARPT<7:0> = 00h and
0 = Alarm is disabled
CHIME: Chime Enable bit
1 = Chime is enabled; ARPT<7:0> bits are allowed to roll over from 00h to FFh
0 = Chime is disabled; ARPT<7:0> bits stop once they reach 00h
AMASK<3:0>: Alarm Mask Configuration bits
0000 = Every half second
0001 = Every second
0010 = Every 10 seconds
0011 = Every minute
0100 = Every 10 minutes
0101 = Every hour
0110 = Once a day
0111 = Once a week
1000 = Once a month
1001 = Once a year (except when configured for February 29
101x = Reserved; do not use
11xx = Reserved; do not use
ALRMPTR<1:0>: Alarm Value Register Window Pointer bits
Points to the corresponding Alarm Value registers when reading the ALRMVALH and ALRMVALL registers.
The ALRMPTR<1:0> value decrements on every read or write of ALRMVALH until it reaches ‘00’.
ALRMVAL<15:8>:
00 = ALRMMIN
01 = ALRMWD
10 = ALRMMNTH
11 = Unimplemented
ALRMVAL<7:0>:
00 = ALRMSEC
01 = ALRMHR
10 = ALRMDAY
11 = Unimplemented
ARPT<7:0>: Alarm Repeat Counter Value bits
11111111 = Alarm will repeat 255 more times
.
.
.
00000000 = Alarm will not repeat
The counter decrements on any alarm event; it is prevented from rolling over from 00h to FFh unless
CHIME = 1.
CHIME
ARPT6
R/W-0
R/W-0
CHIME = 0)
ALCFGRPT: ALARM CONFIGURATION REGISTER
W = Writable bit
‘1’ = Bit is set
AMASK3
ARPT5
R/W-0
R/W-0
AMASK2
ARPT4
R/W-0
R/W-0
PIC24FJ64GB004 FAMILY
Preliminary
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
AMASK1
ARPT3
R/W-0
R/W-0
AMASK0
ARPT2
R/W-0
R/W-0
th
, once every 4 years)
x = Bit is unknown
ALRMPTR1
ARPT1
R/W-0
R/W-0
DS39940C-page 241
ALRMPTR0
ARPT0
R/W-0
R/W-0
bit 8
bit 0